Ethernet Electrical Testing Software for 5/6 SeriesMSO

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Ethernet Electrical Testing Software for 5/6 SeriesMSOOption 5-CMENET/6-CMENET and 5-CMENETML/6-CMENETML Application Datasheet

Get more visibility into your Ethernet designs with 1000BASE-T/100BASE-TX/10BASE-T PHY Measurement and Analysis on the 5Series, 6 Series, and 6 Series B MSO. The combination of theoscilloscope, analysis software – Option 5-CMENET/6-CMENET, and awide range of available analog probes enables you to perform detailedand accurate amplitude and timing measurements on your designs. The12-bit analog-to-digital converters in the 5/6/6B Series MSO deliverprecise measurement data.

Option 5-CMENET/6-CMENET is a standard specific application forTektronix 5/6 Series and 6 Series B MSO oscilloscopes. Thisapplication includes compliance measurements that enable you toachieve new levels of debugging, efficiency, and accuracy. Option 5-CMENET/6-CMENET adds a long list of IEEE 802.3 and ANSI X3.263specific measurements for different Ethernet standards to the standardjitter, timing, and signal quality measurements in the 5/6 Series MSOoscilloscopes.

Key features• Comprehensive Ethernet PHY test coverage supporting multiple

speeds.• Highly optimized and intuitive user interface for quick test

configuration and validation of electrical signals.• Compliance and margin testing for accurate analysis and improved

interoperability.• Time-domain and frequency-domain measurements made with a

single instrument.• Jitter and timing measurements with and without filters.• Amplitude and droop testing for transmitter performance.• Detailed test reports with results, pass/fail info, test margin, and test

specific waveform images.• Configure test parameters and limits for debug and

characterization.• Configure multiple test runs and analyze the results.• Preview the test mode waveform before running the tests.• Additional Peak Distortion Vs Phase Offset and Error Values Vs

Symbol Number plots for 1000BASE-T distortion tests.

Ethernet compliance testing has some unique measurementchallenges:

• Generating the disturbing signals requires you to generate patterndata and noise to create real-world noise for some measurements.

• You must test amplitude, timing, return loss, and templatemeasurements for the ethernet standards:

• The 100BASE-TX standard outlines 12 tests per port plusCMRR and more

• The 1000BASE-T standard calls for 80 tests per port plus BER,CMRR, and more

• The 10BASE-T standard specifies 22 tests per port plus faulttolerance and CMRR

• Because of the large number of individual tests, compliance testingtakes a lot of setup and measurement time, and makes repeatablemeasurement results difficult to achieve.

Automated Ethernet physical layer compliancetestingAutomated TekExpress Ethernet electrical testing with option 5-CMENET/6-CMENET requires an oscilloscope with minimumbandwidth of 1 GHz. This application provides automated compliancetesting for Ethernet verification.

Executing all of the measurements manually is extremely time-consuming. TekExpress Ethernet software provides you an automationframework, enabling you to execute all of the measurements with lessuser intervention, such as when you need to change the connections.

Figure 1: TekExpress Ethernet test selection panel

TekExpress Ethernet software allows you to choose complete orselective testing of any of the transmitter electrical specifications. Testsare configured by following a step-by-step process. The software setsup the oscilloscope and automates the testing, guiding you to accurateand repeatable results. It generates a comprehensive, date-stampedtest report with pass/fail results, waveforms, and data plots.

Software navigation follows a logical workflow for quick test setups,changes and review of test results. Valid testing requires propercabling, probes, and connections between fixtures, instruments, and thedevice under test (DUT). The software provides setup instructions foreach test, with images and reference illustrations showing correctconfigurations.

TekExpress Ethernet Electrical Testing Software Datasheet

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TekExpress Ethernet software requires a Tektronix 5/6/6B Series MSOoscilloscope with Option 5-WIN/6-WIN or SUP5-WIN/SUP6-WIN(Microsoft Windows 10). This is a Windows application and the softwaredisplays TekExpress Ethernet software and test reports on theoscilloscope display. However, for convenience an external monitormay be connected to the 5/6/6B Series MSO so test controls andreports can be viewed on the external display, while signal acquisition isobserved on the primary oscilloscope display.

Figure 2: TekExpress Ethernet results panel displaying tests results

1000Base-T-Multi Pair testingThe 1000Base-T consists of four pairs of full duplex signals namely,Pair A, Pair B, Pair C, and Pair D. The compliance testing of theEthernet testing requires all the four pairs/lanes of signals to be testedfor all the parameters listed below the disturbing and non-disturbingoptions.

Figure 3: 1000Base-T-Multi Pair testing setup

Figure 4: Test pair setup for four pairs

The traditional approach is testing of each pair sequentially. Mostsystems come with multiple ports. Testing four pairs of signals on eachport sequentially can lead to very long test times and subsequently alonger time to market. The new approach tests all four pairs of signalsat the same time in the non-disturbing signal mode testing. Paralleltesting for pairs in non-disturbing signal mode leads to saving 30minutes of test time as compared to running a single pair test fourtimes. This leads to saving days of test time in characterization labs andhence, a faster time to market.

The multi-pair top up on 5-CMENET/6-CMENET enables both two pairand four pair parallel testing for non-disturbing signal mode. The twopair testing requires two probes and the four pair option requires fourprobes. The TC2 section of the TF-GBE-BTP provides parallel accessto all the four pairs. The TekExpress application allows both options:Traditional approach of single lane testing and optionally, multi pair.

Figure 5: Multi Pair testing


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Amplitude testsThe industry standards require the signals to have amplitudes withinspecified ranges to assure interoperability between devices. Theamplitude tests vary with the signal speeds but include suchparameters as peak or peak-to-peak amplitude, overshoot, commonmode voltage, and positive/ negative pulse symmetry.

Timing testsTiming parameters of the signals are also specified by the standards.These tests include timing measurements such as rise time, fall time,and difference or symmetry between rise and fall times.

Jitter testsJitter tests quantify the timing variations of the edges of the signal,using specified test patterns. These jitter measurements include the

contributions from duty cycle distortion and the baseline wander. Jitteris determined by accumulating waveforms, measuring the width of theaccumulated points at the eye crossing. The peak-to-peak is inferredfrom minimum and maximum values in the tails of the histogram.

Template testsTemplate mask tests are often used to quickly verify that the transmittedsignal meets industry-standard requirements. These template masksare defined so that signal distortions such as overshoot, jitter, incorrectrise and fall times, etc., will cause the mask test to fail.

Figure 6: TekExpress Ethernet running 1000BASE-T template measurement


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Figure 7: TekExpress Ethernet running 100BASE-T AOI template

Figure 8: TekExpress Ethernet running 10BASE-T MAU temple test


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Return Loss testThe return loss of the cabling system can affect interoperability of thesystem. The Ethernet standard defines the minimum amount ofattenuation the reflected signal should have relative to the incidentsignal. The Return Loss test measures the impedance, typically overthe range of 100 Ω ±15%. The TekExpress Ethernet ingeniouslyperforms the Return Loss test for 85, 100, and 115 Ω (111 Ω for10BASE-T) impedances as prescribed by the standard, using the

5/6/6B Series MSO and AFG/AWG series used for other tests, enablingefficient usage of resources.

The TekExpress application enables two ways of testing. One wherethe AFG/AWG can be used in automated solution and the other wherethe S-parameter files from a TTR500 can be used for report generation.In the case of AFG/AWG, the application supports return loss testing onupto two pairs at a time. This helps reduce test time by half and thus,saving considerable amount of time.

Figure 9: 1000BASE-T Return Loss plot

Test report generationTekExpress Ethernet allows you to quickly validate and generatedetailed reports with images and setup details at the end of everyexecution.


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Figure 10:

Test fixturesThe TF-GBE Series of test fixtures supports many of the Ethernetcompliance tests, providing convenient signal access, test points foraccurate removal of disturbing signals, return loss calibration, andcross-connect circuits to connect to traffic generators and link partners.The TF-GBE-BTP is the basic test fixture package for10/100/1000BASE-T tests. The TF-GBE-ATP is the advanced testfixture package which also includes a 1000BASE-T jitter test channelcable.

Figure 11: TF-GBE-BTP Basic Ethernet Test Fixture.


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Key measurementsTekExpress Ethernet Electrical Testing Software provides the following key measurements:

1000BASE-T (available with and without disturbing signal test option)

• • With and without disturber

• Template A• Template B• Template C• Template D• Template F• Template H• Peak A• Peak B• Peak C• Peak D• Droop G• Droop J• Distortion (with and without clock)

• Master Jitter - Filtered and unfiltered (with and without clock)• Slave Jitter - Filtered and Unfiltered (with and without clock)• Common Mode Voltage• Return Loss

100BASE-TX

• • AOI Template• Rise Time• Fall Time• Rise/Fall Time Symmetry• Differential Output Voltage• Amplitude Symmetry• Waveform Overshoot• Duty Cycle Distortion• Jitter• Return Loss

10BASE-T

• • Link Pulse (With and without TPM)• TP_IDL (With and without TPM)• MAU Template• Harmonics• Common Mode Voltage• Differential Voltage• Jitter• Return Loss


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Ordering informationRequired hardware

Oscilloscope 6 Series or 6 Series B MSO oscilloscope with minimum bandwidth of 1 GHz (option 5-BW-1000or 6-BW-1000)

5-WIN or 6-WIN (Removable SSD with Microsoft Windows 10 operating system)

Supported instruments MSO54, MSO56, MSO58, MSO64, MSO64B, MSO66B, and MSO68B.

Required softwareApplication Options License typeTekExpress Ethernet (1000BASE-T, 100BASE-TX, 10BASE-T) automated compliance testsolution

5-CMENET

6-CMENET

New instrument license

SUP5-CMENET

SUP6-CMENET

Upgrade license

SUP5-CMENET-FL

SUP6-CMENET-FL

Floating license

Multilane Ethernet (1000BASE-T, 100BASE-TX, 10BASE-T) automated compliance testsolution

5-CMENETML1

6-CMENETML1

New Instrument license

Requires 5/6-CMENET

SUP5-CMENETML1

SUP6-CMENETML1

Upgrade license

Requires 5/6-CMENET

SUP5-CMENETML-FL1

SUP6-CMENETML-FL1

Floating license

Requires 5/6-CMENET-FL

Recommended probes and accessoriesRecommended Probes 5/6-CMNET 5/6-CMENETML

TDP 3500 22 Maximum 8 Probes are required for completeautomation of 4 pairs. 6 probes are required for4 pair jitter tests ifTX_TCLK is available. 5/6-CMENETML needs a minimum of 2 probes

TDP 1500 22

P62473 22

P62483 22

1 5/6-CMENET is mandatory for all options 5/6-CMENETML.


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Recommended test fixturesTest Fixtures Vendor

TF-GBE-BTP Basic Ethernet Test Fixture

TF-GBE-ATP Advanced Ethernet Test Fixture with Jitter Channel

TF-GBE-JTC 103 meter 1000BASE-T Jitter Test Channel Cable

TF-GBE-SIC Short (4 inch or 0.1 meter) RJ-45 Interconnect Cable

Supported signal sources (for Disturbing signal and Return Loss testing)Instrument ModelsArbitrary Function Generator AFG310002 (recommended), AFG3000 Series

Arbitrary Waveform Generator AWG5200, AWG5000C, AWG7000C, AWG7000C Series

Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar.

Product(s) complies with IEEE Standard 488.1-1987, RS-232-C, and with Tektronix Standard Codes andFormats.

Product Area Assessed: The planning, design/development and manufacture of electronic Test andMeasurement instruments.

2 Supported models - AFG31252, AFG31152, and AFG31102


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For Further Information. Tektronix maintains a comprehensive, constantly expanding collection of application notes, technical briefs and other resources to help engineers working on the cutting edge of technology. Please visit www.tek.com.Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specification and price changeprivileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. All other trade names referenced are the service marks, trademarks, or registered trademarks of their respective companies.

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Ethernet Electrical Testing Software for 5/6 SeriesMSO

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